CN111757433A

CN111757433A - Power control method, terminal equipment and network equipment

Info

Publication number: CN111757433A
Application number: CN201910252589.7A
Authority: CN
Inventors: 胡丹; 官磊; 李胜钰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-10-09

Abstract

The application provides a power control method, terminal equipment and network equipment. After receiving the power adjustment information, the terminal device adjusts the first transmission power by using the power adjustment information in a section of action domain; and under the condition of exceeding the scope, the terminal equipment does not use the power adjustment information to adjust the power, and can use the first transmission power to execute subsequent operation, thereby avoiding the terminal equipment from always using a higher power transmission signal and being beneficial to saving the power consumption of the terminal equipment.

Description

Power control method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a method for power control, a terminal device and a network device.

Background

Mobile communication technology has profoundly changed people's lives, but the pursuit of higher performance mobile communication technology has never stopped. In order to cope with explosive mobile data traffic increase, massive mobile communication device connection, and various new services and application scenarios which are continuously emerging, the fifth generation (5G) mobile communication system is in operation. The International Telecommunications Union (ITU) defines three broad classes of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), high-reliability and low-latency communications (URLLC), and massive machine type communications (mtc).

Typical eMBB services are: the services include ultra high definition video, Augmented Reality (AR), Virtual Reality (VR), and the like, and these services are mainly characterized by large transmission data volume and high transmission rate. Typical URLLC services are: the main characteristics of the applications of wireless control in industrial manufacturing or production processes, motion control of unmanned automobiles and unmanned airplanes, and haptic interaction such as remote repair and remote operation are that ultra-high reliability, low time delay, less transmission data volume and burstiness are required. Typical mtc services are: the intelligent power distribution automation system has the main characteristics of huge quantity of networking equipment, small transmission data volume and insensitivity of data to transmission delay, and the mMTC terminals need to meet the requirements of low cost and very long standby time.

Different services have different requirements on the mobile communication system, and how to better support the data transmission requirements of a plurality of different services simultaneously is a technical problem to be solved by the current 5G mobile communication system. For example, how to support URLLC service and eMBB service simultaneously is one of the hot spots for discussion of current 5G mobile communication systems.

In order to ensure the uplink transmission delay of the URLLC service, a scheduling-free (configured grant/grant free) mechanism is introduced, specifically: the network device is pre-configured with uplink resources for scheduling-free transmission, if the terminal device has information needing to be uploaded urgently, the information can be directly transmitted through the scheduling-free resources without the steps of sending a scheduling request to the network device through the terminal device, sending uplink permission to the terminal device after the network device receives the scheduling request, scheduling time-frequency resources of uplink transmission and the like, and therefore URLLC service transmission delay is greatly reduced. The network device pre-configures uplink resources for a scheduled/grant free transmission, and since the scheduled/grant free transmission is an aperiodic burst and the network device cannot predict, there may be no transmission on a part of time frequency resources, thereby reducing system efficiency. In order to utilize the resources, the network device allows scheduling of a portion of the traffic transmission on the scheduling-free uplink resources. Fig. 1 shows a schematic diagram of an example of a network device scheduling resources. As shown in fig. 1, in an Uplink (UL), a UE may perform schedule-free (GF) transmission in a schedule free (GF) resource. In the scheduling-free resources, the network device may schedule transmission of the eMBB service (eMBB transmission, eMBB Tx) onto the scheduling-free resources. If no scheduling-free URLLC service transmission exists on the scheduling-free resource, the eMBB service can be normally transmitted; if there is no-scheduling URLLC service transmission on the no-scheduling resource, and the time-frequency resource occupied by the no-scheduling URLLC transmission overlaps with the time-frequency resource occupied by the network device scheduled eMBB transmission, the network device increases the URLLC UE transmission power by sending Transmit Power Control (TPC) commands to the URLLC UE through Downlink (DL), thereby reducing the impact on the reliability of the no-scheduling URLLC transmission.

Disclosure of Invention

In view of this, the present application provides a power control method, a terminal device and a network device, where the terminal device adjusts the transmission power by using power adjustment information during the scope, so as to avoid that the terminal device always uses a signal transmitted at a higher power, which is beneficial to saving the power consumption of the terminal device.

In a first aspect, a method for power control is provided, including: a terminal device (which may also be a module, such as a chip, in the terminal device) receives first power adjustment information, and then within an action domain of the first power adjustment information, adjusts first transmission power using the first power adjustment information to obtain second transmission power during the action domain; and sending the first information by using the second transmitting power on the first time-frequency resource, namely, the terminal equipment uses the first power adjustment information to adjust the power in the scope of action, and does not use the first power adjustment information under the condition of exceeding the scope of action, so that the terminal equipment can be prevented from always using higher power to transmit signals, and the power consumption of the terminal equipment is saved.

In one possible implementation, the method further includes: and in case of exceeding the scope, the terminal equipment transmits second information by using the first transmission power. Therefore, the terminal device does not use the second transmission power when exceeding the scope, and can restore to the first transmission power when sending the second information and send the second information by using the first transmission power, which is beneficial to saving the power consumption of the terminal device.

In another possible implementation manner, the method further includes: and if the terminal equipment receives second power adjustment information under the condition of exceeding the scope, the terminal equipment adjusts the power based on the first transmitting power and the second power adjustment information. In this way, when the terminal device exceeds the scope of action, the power of the information transmission can be restored to the first transmission power, and if the second power adjustment information is received, the second power adjustment information is used to adjust the terminal device on the basis of the first transmission power.

Optionally, the terminal device may obtain the scope in a display or implicit manner. If implicit, the scope may be protocol predefined.

Optionally, the method further comprises: and the terminal equipment receives indication information, wherein the indication information is used for indicating the scope. Therefore, the terminal device can obtain the scope through the indication information.

Optionally, the receiving, by the terminal device, the indication information includes: the terminal equipment receives a first physical layer signaling from network equipment, wherein the first physical layer signaling comprises the indication information; or, the terminal device receives a high-level signaling from a network device, where the high-level signaling includes the indication information. Therefore, the form of the indication information is flexible, and the indication information can be carried in physical layer signaling sent by the network equipment and can also be carried in higher layer signaling.

Optionally, the first physical layer signaling is user equipment UE-specific downlink control information DCI; alternatively, the first physical layer signaling is a common DCI or a group common DCI. For common DCI or group common DCI, multiple terminal devices may share the first physical layer signaling, thereby saving DCI overhead.

Optionally, the first physical layer signaling is DCI, where the DCI is configured to activate scheduling-free transmission of a second type. Thus, the first physical layer signaling may reuse the field indication scope in the activation DCI, thereby eliminating the need to introduce new fields.

Optionally, the first power adjustment information is indicated by a hybrid automatic repeat request, HARQ, process number field in the active DCI, and the indication information is indicated by a redundancy version, RV, field in the active DCI; or, the first power adjustment information is indicated by a redundancy version, RV, field in the activation DCI, and the indication information is indicated by a HARQ process number field in the activation DCI. Accordingly, the validation in the activation DCI may be validated by the first bit of the HARQ process number.

Optionally, the scope includes a time domain scope and/or a frequency domain scope.

Optionally, the time-domain scope corresponds to an index value of one or more time units. Optionally, the time unit corresponding to the time domain is a time slot.

Optionally, the first power adjustment information includes one or more of the following information: a closed loop indication, or a first power control parameter, or a closed loop indication and a first power control parameter; wherein the first power control parameter comprises one or more of: and the network equipment receives the target signal-to-noise ratio, the path loss compensation factor and the power control correction value of the first information.

In a second aspect, a method of power control is provided, including: a network device (which may also be a network device module, such as a chip) sends first power adjustment information, where the first power adjustment information is used for a terminal device to adjust first transmission power in an action domain, so as to obtain second transmission power during the action domain; first information from the terminal device is received on a first time-frequency resource. Therefore, the network device sends the first power adjustment information to the terminal device, so that the terminal device uses the first power adjustment information to adjust the power in the scope, and the terminal device does not use the first power adjustment information when the terminal device exceeds the scope, thereby avoiding the terminal device from always using higher power to transmit signals and being beneficial to saving the power consumption of the terminal device.

Optionally, the network device receives the second information from the terminal device. Here, in the case of exceeding the scope, the second information received by the network device is sent by the terminal device using the first transmission power, that is, the terminal device may recover to the first transmission power by itself without using the second transmission power and send the second information using the first transmission power, which is helpful for saving power consumption of the terminal device.

In one possible implementation, the method further includes: the network equipment sends a first physical layer signaling to the terminal equipment, wherein the first physical layer signaling comprises indication information, and the indication information is used for indicating the scope; or sending a high-level signaling to the terminal device, where the high-level signaling includes the indication information, and the indication information is used to indicate the scope.

Optionally, the first power adjustment information is indicated by a hybrid automatic repeat request, HARQ, process number field in the active DCI, and the indication information is indicated by a redundancy version, RV, field in the active DCI; or, the first power adjustment information is indicated by a redundancy version, RV, field in the activation DCI, and the indication information is indicated by a HARQ process number field in the activation DCI. Accordingly, the activation DCI may be verified through the first bit of the HARQ process number.

In a third aspect, a communication device is provided, which includes means for performing the method of the first aspect or any possible implementation manner of the first aspect, or means for performing the method of the second aspect or any possible implementation manner of the second aspect.

In a fourth aspect, a communication apparatus is provided, which may be a terminal device designed in the above method, or a chip provided in the terminal device. The communication device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the terminal device in the first aspect and any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

When the communication means is a chip provided in the terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a fifth aspect, a communication apparatus is provided, which may be a network device designed by the method described above, or a chip disposed in the network device. The communication device includes: a processor, coupled to the memory, may be configured to execute the instructions in the memory to implement the method performed by the network device in the second aspect and any one of the possible implementations thereof. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip provided in a network device, the communication interface may be an input/output interface.

A sixth aspect provides a program for performing the method of any one of the first or second aspects and possible embodiments thereof, when the program is executed by a processor.

In a seventh aspect, a program product is provided, the program product comprising: program code which, when executed by a communication unit, processing unit or transceiver, processor of a communication apparatus (e.g. a terminal device), causes the communication device to perform the method of any of the above first aspect and its possible embodiments.

In an eighth aspect, a program product is provided, the program product comprising: program code which, when executed by a communication unit, processing unit or transceiver, processor of a communication apparatus (e.g. a network device), causes the communication device to perform any of the methods of the second aspect and its possible embodiments described above.

In a ninth aspect, there is provided a computer readable storage medium storing a program for causing a communication apparatus (e.g., a terminal device) to perform the method of any one of the first aspect and its possible embodiments.

A tenth aspect provides a computer-readable storage medium storing a program that causes a communication apparatus (e.g., a network device) to perform the method of any one of the second aspect and its possible embodiments.

Drawings

FIG. 1 is a schematic diagram of an example of a network device scheduling resources;

fig. 2 is a schematic architecture diagram of a mobile communication system to which an embodiment of the present application is applied;

FIG. 3 is a schematic interaction diagram of a method of power control according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an example of a frequency domain scope;

FIG. 5 is a schematic diagram of an example of an application of an embodiment of the present application;

FIG. 6 is a diagram of an example of a scheduling free resource, a first time frequency resource and a second time frequency resource;

FIG. 7 is a schematic block diagram of an apparatus for power control according to an embodiment of the present application;

FIG. 8 is a schematic block diagram of an apparatus for power control according to an embodiment of the present application;

FIG. 9 is a schematic block diagram of an apparatus for power control according to another embodiment of the present application;

fig. 10 is a schematic configuration diagram of a power control apparatus according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

In the embodiments of the present application, "a plurality" may be understood as "at least two"; "plurality" is to be understood as "at least two".

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: long Term Evolution (LTE) systems, 5G New Radio (NR) systems, and future mobile communication systems.

Fig. 2 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in fig. 2, the mobile communication system includes a core network device 210, a radio access network device 220, and at least one terminal device (e.g., a terminal device 230 and a terminal device 240 in fig. 2). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 2 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 2. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

A Radio Access Network (RAN) device is an access device in which a terminal device accesses to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b (eNB), a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system, a transmission point, a base station in a future mobile communication system or an access node in a wireless fidelity (Wi-Fi) system, one or a group (including multiple antenna panels) of base stations in the 5G system, or may also be a network node forming the gNB or the transmission point, such as a baseband unit (BBU) or a distributed unit (distributed unit, DU). The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device. In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network, or may be divided into network devices in a Core Network (CN), which is not limited in this application.

The Terminal device may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on.

The wireless access network equipment and the terminal equipment can be deployed on land, including indoors or outdoors, and are handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellites. The embodiment of the application does not limit the application scenarios of the wireless access network device and the terminal device.

The embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is a radio access network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the transmitting device is a terminal device, and the corresponding receiving device is a radio access network device. For D2D signaling, the sending device is a terminal device and the corresponding receiving device is also a terminal device. The embodiment of the present application does not limit the transmission direction of the signal.

The radio access network device and the terminal device, and the terminal device may communicate via a licensed spectrum (licensed spectrum), may communicate via an unlicensed spectrum (unlicensed spectrum), and may communicate via both the licensed spectrum and the unlicensed spectrum. The radio access network device and the terminal device may communicate with each other through a frequency spectrum of 6 gigahertz (GHz) or less, through a frequency spectrum of 6G or more, and through a frequency spectrum of 6G or less and a frequency spectrum of 6G or more. The embodiments of the present application do not limit the spectrum resources used between the radio access network device and the terminal device.

The embodiment of the application is mainly applied to a 5G NR system. The embodiment of the present application may also be applied to other communication systems, as long as an entity in the communication system needs to send the indication information of the transmission direction, and another entity needs to receive the indication information and determine the transmission direction within a certain time according to the indication information.

It should be understood that the communication system in fig. 2 is only described by way of example, and does not limit the scope of the embodiments of the present application. The technical solution of the embodiment of the present application may also be used in other communication systems as long as the communication system needs to indicate the transmission direction.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

In the example shown in fig. 1, when the time-frequency resource occupied by the non-scheduled URLLC transmission overlaps with the time-frequency resource occupied by the eMBB transmission scheduled by the network device, the network device may send Transmit Power Control (TPC) to the URLLC UE, so that the URLLC UE increases the transmission power of the non-scheduled URLLC. The URLLC UE transmits at a higher transmission power after receiving the TPC. When the eMMC transmission scheduled by the network equipment is finished, the time-frequency resources occupied by the scheduling-free URLLC transmission and the time-frequency resources occupied by the eMMC transmission do not overlap, and in order to avoid the situation that the scheduling-free URLLC transmission still adopts the higher transmission power after adjustment, the embodiment of the application provides a power control method.

In the embodiment of the application, the terminal device adjusts the transmission power by using the power adjustment information during the scope, so that the terminal device is prevented from always using a signal transmitted with higher power, and the power consumption of the terminal device can be saved.

For ease of understanding, the following description will generally refer to terms or concepts that may be involved in embodiments of the present application.

A time unit, which may include a subframe, a slot (slot), a mini-slot (mini-slot), a symbol, and the like. The minislot is a time domain unit with a time domain length smaller than the time slot. Wherein, one time slot may include 14 time domain symbols, and one micro time slot includes less than 14 time domain symbols, such as 2, 4, 7, and so on; or, a time slot may include 7 time domain symbols, and the number of time domain symbols included in a micro time slot is less than 7, such as 2 or 4, and the specific value is not limited.

The power control adjustment mechanisms include open loop power control and closed loop power control. The power control parameter can distinguish between an open-loop power control mechanism and a closed-loop power control mechanism. The open-loop power control is mainly realized by adjusting the target signal-to-noise ratio P received by the network equipment_{O_PUSCH,b,f,c}(j) And a path loss compensation factor α_b,f,c(j) Rapidly adjusting the power; closed loop power control by transmission power control command f_b,f,cCumulative correction value of (i, l)

Or absolute correction values f_b,f,c(i,l)＝_PUSCH,b,f,c(i, l) fine-tuning the power.

Wherein the content of the first and second substances,

indicates a transmission timing i-i of a physical downlink shared channel (PUSCH) by the UE₀Front K_PUSCH(i-i₀) K1 symbol to PUSCH transmission opportunity i front_PUSCH(i) Cardinality of TPC command values between symbols, K_PUSCHIndicating an offset (offset) between a time domain position where the UE receives Downlink Control Information (DCI) which may be an uplink grant for scheduling the PUSCH or a common DCI acting on the PUSCH and a time domain position where the PUSCH is transmitted; m represents the transmission time i-i of the UE in the PUSCH₀Front K_PUSCH(i-i₀) K1 symbol to PUSCH transmission opportunity i front_PUSCH(i) The number of TPC commands received between symbols.

The transmit power of the terminal device may be calculated using the following equation:

wherein c is a serving cell, i is a transmission opportunity (transmission opportunity) of the PUSCH, j is identification information of a power control parameter, l is a closed-loop indication, f is a carrier, q is_dReference signal resource, P, utilized by a terminal device_PUSCH,b,f,cFor the transmission power of the PUSCH in the serving cell, b denotes an active uplink bandwidth part (active UL BWP), P_CMAX,f,cMaximum power, P, allowed to be transmitted on carrier and serving cell for terminal equipment_{O_PUSCH,b,f,c}The target signal-to-noise ratio when the network equipment receives the data transmitted by the terminal equipment,

serving cell resources for PUSCHSource allocation bandwidth indication information, α_b,f,cIs a path loss compensation factor, PL_b,f,cIs a value of path loss, Δ_TF,b,f,cIs the modulation mode offset, f_b,f,cThe state is adjusted for closed loop power control.

It should be understood that the specific explanations or meanings referred to in the above formula can refer to descriptions in the standard protocol (3GPP 38.214v15.4.0), and are not repeated here for brevity.

The method of power control of the embodiment of the present application will be described below with reference to fig. 3 to 6.

Fig. 3 shows a schematic interaction diagram of a method 400 of power control according to an embodiment of the application. It is to be appreciated that in the method 400, the network device side behavior may be performed by the network device or a module (e.g., a chip) in the network device; the terminal device side behavior may be performed by the terminal device or a module (e.g., a chip) in the terminal device. As shown in fig. 3, the method 400 includes:

s410, the network equipment sends first power adjustment information. Correspondingly, the terminal equipment receives the first power adjustment information.

The first power adjustment information may include: a closed loop indicator (closed loop indicator), or the first power control parameter, or both the closed loop indicator and the first power control parameter. Wherein the first power control parameter comprises one or more of: and the network equipment receives the target signal-to-noise ratio, the path loss compensation factor and the power control correction value of the first information. The power control correction value includes an accumulated correction value and an absolute correction value. The distinction between the cumulative correction value and the absolute correction value is configured by higher-level parameters.

It should be understood that the above description only describes the possible information in the first power adjustment information by way of example, and does not limit the embodiments of the present application.

It should also be understood that the explanation or definition of the specific information referred to in the above first power adjustment information may refer to a standard protocol: the third generation partnership project; technical specification group radio access network; NR; description of the Physical layer program (15 th edition) of control (3rd Generation part new Project; Technical Specification Group Radio Access network; NR; Physical layer procedure for control (Release 15) (3GPP TS38.213v15.5.0)) is omitted here for brevity.

Optionally, in a specific implementation, the first power adjustment information may be a power control command.

S420, the terminal device uses the first power adjustment information to adjust the first transmission power in the scope of the first power adjustment information, and obtains a second transmission power in the scope period.

In the embodiment of the present application, the scope may be indicated by displaying or hiding. If the mode is implicit, the scope can be predefined, and after receiving the first power adjustment information, the terminal device uses the first power adjustment information to adjust the first transmission power in the scope. If the scope is in a display mode, the terminal device can obtain the scope by acquiring indication information, wherein the indication information is used for indicating the scope. Alternatively, the indication information may be an x-bit information element or field, where x is a positive integer.

It should be understood that, if the manner of displaying the indication is adopted, the specific content of the scope indicated by the indication information is not limited in the embodiment of the present application. For example, the scope indicated by the indication information may indicate one or more of the following: a start time unit of a scope, a time domain length of a scope, one or more discrete time units of a scope. For example, if the indication information is represented by 1bit, two states can be indicated, one state represents a scope of M time units (M is a positive integer); the other state indicates that the start position of the scope is the start time domain position where the first power adjustment information is effective, and does not limit the end position where the first power adjustment information is effective. For example, if the indication information is represented by 2 bits, 4 states can be indicated, which are: the time domain of the first power adjustment information is a time units; the time domain of the first power adjustment information is b time units; the time domain of the first power adjustment information is c time units; the start position of the scope is a start time domain position where the first power adjustment information is effective, and the end position where the first power adjustment information is effective is not limited, where a, b, and c are positive integers. Correspondingly, after receiving the indication information, the terminal device may obtain the scope based on the specific state indicated by the indication information.

If the scope includes a time domain scope, the time domain scope may be understood as to which time domain resources the terminal device performs power adjustment based on the first power adjustment information. In particular, the time-domain scope may be expressed as a time-domain length. The time domain length may be an infinite length (i.e., the scope has a starting time domain position, but is not limited to an ending time domain position) or a finite length (i.e., the scope has a starting time domain position and an ending time domain position).

If the time domain length of the time domain scope is infinite, the terminal device may adjust the first transmission power using the first power adjustment information within the scope. If the time domain length of the time domain scope is infinite, the terminal device may store the first power adjustment information in a register of the terminal device, and the terminal device may perform adjustment using the first power adjustment information until new power adjustment information is received.

If the coverage includes a frequency domain coverage, the frequency domain coverage may be understood as to which frequency domain resources the terminal device adjusts the first transmit power based on the first power adjustment information. In particular, the frequency domain may be represented as a frequency bandwidth. For example, if the indication information is represented by 1bit, two states are indicated, one state of the bit is the upper half band of the frequency domain bandwidth, and the other state of the bit is the lower half band of the frequency domain bandwidth. If the frequency domain bandwidth is B_INTThe upper half bandwidth is shown as

The lower half-band width is shown as

If the indication information indicates that the scope of the first power adjustment information is the upper half band of the frequency domain bandwidth, when the resources occupied by the physical uplink shared channel PUSCH transmitted by the terminal device in the frequency domain are all on the lower half band, the first transmission power does not need to be adjusted according to the first power adjustment information, and if part of the resources occupied by the PUSCH transmitted by the terminal device in the frequency domain are on the upper half band of the frequency domain bandwidth, the PUSCH needs to adjust the first transmission power according to the first power adjustment information. It should be understood that the frequency domain bandwidth here may be the frequency domain bandwidth of the whole cell, or may be the frequency domain bandwidth corresponding to a bandwidth part (BWP), which is not specifically limited in this embodiment of the present invention.

Fig. 4 shows a schematic diagram of an example of a frequency domain. As shown in fig. 4, assuming that only the scope includes the frequency domain scope, the resource occupied by the time-frequency resource #1 in the frequency domain is on the lower half frequency band (there is no overlapping portion between the time-frequency resource #1 and the second time-frequency resource), and a part of the resource occupied by the time-frequency resource #2 in the frequency domain is on the upper half frequency band (there is an overlapping portion between the time-frequency resource #2 and the second time-frequency resource), if the terminal device receives the first power adjustment information, it is necessary to adjust the power on the time-frequency resource #2 using the first power adjustment information, but the time-frequency resource #1 is not needed. The time frequency resource #1 and the time frequency resource #2 are resources in the first time frequency resource. Alternatively, the indication information may be Nbit, which may be used to indicate 2^NA frequency domain location.

Alternatively, the scope may act on both the time domain scope and the frequency domain scope, enabling finer scope indication. Alternatively, whether the scope includes a frequency domain scope may be indicated by a higher layer parameter. For example, when the value of the high-level parameter timefrequency set is 0, it indicates that the scope only indicates the scope of the time domain; when the value of the high-layer parameter timefrequency set is 1, the scope is represented by a combination of a frequency domain scope and a time domain scope. It should be understood that the description is only given by taking the high-level parameter timefrequency set as an example, and other high-level parameters or newly defined parameters may also be used, which is not specifically limited in the embodiment of the present application. It should be further understood that the specific value of the high-level parameter timefrequency set is also an example, and is not limited in the embodiment of the present application, and in fact, another value may be taken.

For example, assuming that the DCI field of the downlink control information for indicating the active field is 14 bits (i.e. 7 pairs of bits), the 7 pairs of bits can be used to indicate 7 groups of time frequency resources, wherein one bit of each pair of bits is used to indicate the upper frequency band corresponding to the corresponding time domain resource

Another bit is used for indicating the corresponding lower half frequency band of the corresponding time domain resource

The value of bit may be used to indicate whether it is the scope of the first power adjustment information. Specifically, for example, if the bit is set to 1, it indicates that the time-frequency resource corresponding to the bit is the scope of the first power adjustment information, and if the bit is set to 0, it indicates that the time-frequency resource corresponding to the bit is not the scope of the first power adjustment information. As shown in fig. 5, the value of the high-level parameter timefrequency set is 1 (indicating that the scope includes a combination of a frequency domain scope and a time domain scope), and taking 14 symbols as an example, assuming that the transmission of the eMBB service only falls into the time-frequency resource corresponding to the symbol 3, the transmission of the URLLC service occupies the time-frequency resource # a (the time-frequency resource # a is located in the time-frequency resource corresponding to the symbol 3) and the time-frequency resource # b (the time-frequency resource # b is located in the time-frequency resource corresponding to the symbol 4, and there is no overlap with the time-frequency resource corresponding to the symbol 3), it can be seen that the transmission of the URLLC service in the time-frequency resource # b is not affected by the transmission of the eMBB service, and the indication information may indicate that the scope only takes effect in the. Therefore, the time-frequency resource # a is a scope that needs to use the first power adjustment information, while the time-frequency resource # b does not need to use the first power adjustment information for adjustment.

It should be understood that the above examples are merely for facilitating understanding of the embodiments of the present application by those skilled in the art, and are not intended to limit the embodiments of the present application to the particular scenarios illustrated. It will be apparent to those skilled in the art from the foregoing examples that various equivalent modifications or changes may be made, and such modifications or changes also fall within the scope of the embodiments of the present application.

S430, the terminal equipment uses the second transmitting power to transmit the first information on the first time-frequency resource. Correspondingly, the network device receives the first information from the terminal device on the first time-frequency resource. The first information may include uplink control information, a reference signal, data, or the like sent by the terminal device.

In the embodiment of the present application, the first time-frequency resource is a resource in a scheduling-free resource. Optionally, the first time-frequency resource is a scheduling-free resource pre-configured by the network device for the first service (the first service may be a low-latency service, such as URLLC service). The network device may also schedule a second time-frequency resource for transmission of a second service (e.g., an eMBB service), where a priority of the second service is lower than a priority of the first service. And the second time frequency resource is overlapped with the first time frequency resource. The overlap here includes overlap in the time domain and/or overlap in the frequency domain. Wherein, the start time of the scope is not earlier than the time domain start position of the second time frequency resource, and/or the end time of the scope may be the end time domain position of the second time frequency resource.

The embodiment of the present application does not limit the service or the signal transmitted in the second time-frequency resource. For example, the uplink signal to be transmitted in the second time frequency resource is an aperiodic signal triggered by the trigger signaling, and the second time frequency resource is indicated by the trigger signaling. The trigger signaling may be any one of three cases: (1) the triggering signaling is uplink authorization, the uplink authorization is carried by a downlink control channel, correspondingly, the aperiodic signal is uplink data scheduled by the uplink authorization, and the uplink data is carried by an uplink data channel; (2) the trigger signaling is a downlink assignment or a downlink data channel, where the downlink assignment may be carried by a downlink control channel, and the downlink assignment may schedule the downlink data channel, and correspondingly, the aperiodic signal is uplink feedback information corresponding to the downlink data channel, for example, acknowledgement (Ack) or Negative Acknowledgement (NACK) information, and the Ack/NACK information may be carried by the uplink control channel or the uplink data channel; (3) the trigger signaling is a trigger identifier, the trigger identifier may be carried by an uplink grant, or a downlink assignment, or a control channel independent of the uplink grant and the downlink assignment, and correspondingly, the aperiodic signal is an uplink aperiodic sounding reference signal SRS or uplink aperiodic Channel State Information (CSI) triggered by the trigger identifier, and the uplink aperiodic CSI may be carried by an uplink control channel or an uplink data channel.

Or the uplink signal to be transmitted in the second time-frequency resource is a periodic signal triggered by the configuration signaling, and the second time-frequency resource is determined by the configuration signaling. Wherein the periodic signal may be at least one of the following signals: a semi-persistent scheduling uplink data channel, a channel sounding signal (SRS), CSI, a Scheduling Request (SR), a random access signal, and the like. The configuration signaling may be Radio Resource Control (RRC) signaling or Medium Access Control (MAC) signaling or physical layer signaling. The configuration signaling may configure a transmission period of the periodic signaling and a time domain resource offset.

For ease of understanding, fig. 6 shows a schematic diagram of an example of a scheduling free resource, a first time-frequency resource and a second time-frequency resource. As shown in fig. 6, in case one of fig. 6, there is an overlapping portion between the first time-frequency resource and a second time-frequency resource, where the second time-frequency resource is a resource scheduled by the network device in a scheduling-free resource, and all resources of the second time-frequency resource are located in the scheduling-free resource; in case two of fig. 6, there is an overlap between the first time-frequency resource and the second time-frequency resource, and the second time-frequency resource overlaps with the scheduling-free resource in the time domain, which is different from case one in that: a part of the second time-frequency resources on the frequency domain are not in the scheduling-free resources, and a part of the second time-frequency resources are in the scheduling-free resources; in case three of fig. 6, there is an overlap between the first time-frequency resource and the second time-frequency resource, which is different from case three in that: a portion of the second time frequency resources are not scheduled resources in the non-scheduled resources, and another portion of the second time frequency resources are scheduled resources in the non-scheduled resources by the network device. It should be understood that each of the scenarios shown in fig. 6 are applicable to the embodiments of the present application.

If the scope is the limited time domain length, the terminal device adjusts the first transmission power using the first power adjustment information in the limited time domain length. It should be noted that, in the case of exceeding the scope, it may be understood that the terminal device does not continue to use the first power adjustment information for power adjustment. Two possible implementations of how the terminal device uses the first transmit power in case of exceeding the scope will be described below.

In the method 1, if the terminal device does not receive new power adjustment information (for example, second power adjustment information) in the case of exceeding the scope, the terminal device may send the second information using the first transmission power, that is, automatically recover to the first transmission power to send the second information. The second information may include uplink control information, a reference signal, data, or the like sent by the terminal device. Therefore, the terminal equipment does not adopt higher transmission power transmission any more, the power consumption of the terminal equipment is reduced, and the interference to the adjacent cell can be avoided.

For example, assuming that a closed-loop power control cumulative correction mechanism is adopted, taking the first transmit power of the terminal device at the nth-1 PUSCH transmission opportunity as an example of 7 decibels (dB), if the terminal device receives the first power adjustment information (for example, a cumulative power correction +3dB command) before transmitting the nth PUSCH transmission opportunity, the terminal device increases the first transmit power by 7dB during the scope to obtain 10dB (i.e., the second transmit power). Wherein a scope of the first power adjustment information (e.g., a time domain length occupied by 2 PUSCH transmission occasions) is predefined, or is configured by higher layer signaling, or is dynamically indicated by DCI. The transmission power of the terminal device in transmitting the nth and n +1 th PUSCH transmission occasions (the nth and n +1 PUSCH transmission occasions are within the scope of action) is 10 dB; and at the n +2 PUSCH transmission occasion (which is beyond the scope), the terminal device still transmits the second information using 7 dB.

In mode 2, if the terminal device receives the second power adjustment information, the terminal device performs power adjustment based on the first transmit power and the second power adjustment information when the terminal device exceeds the scope. In this way, the terminal device may switch to the first transmission power without using the first power adjustment information when exceeding the scope, and adjust the first transmission power using the second power adjustment information instead of adjusting on the basis of the second transmission power using the second power adjustment information if receiving new power adjustment information (e.g., the second power adjustment information).

For example, assuming that the higher layer instructs the terminal device to employ a closed-loop power control cumulative correction mechanism, taking the first transmit power of the terminal device at the nth-1 PUSCH transmission opportunity as an example of 7dB, if the terminal device receives the first power adjustment information (for example, a command of cumulative power correction +3 dB) before transmitting the nth PUSCH transmission opportunity, the terminal device increases the first transmit power by 7dB during the scope to 10dB (i.e., the second transmit power). Wherein a scope of the first power adjustment information (e.g., a time domain length occupied by 2 PUSCH transmission occasions) is predefined, or is configured by higher layer signaling, or is dynamically indicated by DCI. The transmission power of the terminal device in transmitting the nth and n +1 th PUSCH transmission occasions (the nth and n +1 PUSCH transmission occasions are within the scope of action) is 10 dB; after exceeding the scope and before transmitting the (n + 2) th PUSCH transmission opportunity (the (n + 2) th PUSCH transmission opportunity exceeds the scope), if the terminal device receives the second power adjustment information (such as the cumulative power correction +2dB command), the terminal device will use the first transmission power 7dB to perform power adjustment, that is, increase the power by 2dB for 7dB, and then use 9dB to transmit the second information at the (n + 2) th PUSCH transmission opportunity.

It should be understood that, in implementation, whether the terminal device adopts the mode 1 or the mode 2 may be determined according to a specific scenario, and this is not specifically limited in this embodiment of the application.

In the above mode 1, the terminal device may restore itself to the first transmission power when exceeding the scope. Optionally, the network device may further send third power adjustment information to the terminal device before the end time domain position of the second time-frequency resource, so as to instruct the terminal device to reduce the second transmission power to the first transmission power. In order to meet the low delay requirement of the first service, the terminal device needs to obtain the first transmission power through one adjustment. Whereas in the prior art, closed loop power control adjustments only support cumulative correction values of +3dB, +1dB, 0dB, -1dB, and absolute correction values of-4 dB, -1dB, +4 dB. If, during the scope, the first power adjustment information indicates that the terminal device increases the transmission power by 3dB, no suitable one of the existing correction values enables a reduction of 3dB in case of exceeding the scope. If the higher layer signaling indicates an accumulative power correction mechanism, the transmission power of the terminal equipment can be reduced to a state before the first power adjustment information is effective only by adjusting at least three times (namely, performing actions of reducing by 1dB for three times); if the higher layer signaling indicates an absolute power correction mechanism, it is adjusted at least twice, i.e.: -4dB and +1 dB. Accordingly, embodiments of the present application provide a new closed loop transmission power control command table, as shown in table 1 below:

TABLE 1

In table 1, the TPC command field may indicate an accumulated correction value or an absolute correction value. For example, TPC command field 0 may indicate a cumulative correction of-3 dB; the TPC command field 0 may indicate an absolute correction value of-9 dB, wherein which power correction mechanism is specifically used may be indicated by higher layer signaling.

For example, the first power adjustment information indicates that the UE increases the transmission power by 3dB, and if the terminal device receives TPC command field 0 and the high level command indicates an accumulated correction value, the terminal device performs adjustment once by using the accumulated correction value-3 dB in table 1 to obtain the transmission power before the first power adjustment information acts, or if the terminal device receives TPC command field 1 and the high level command indicates an absolute correction value, the terminal device performs adjustment once by using-3 dB of the absolute correction value in table 1 to obtain the transmission power before the first power adjustment information acts.

It should be understood that table 1 is only exemplary and is not intended to limit the scope of the embodiments of the present application.

Some possible implementations of the indication information will be described below.

In this embodiment, the indication information for indicating the scope may be carried in signaling, for example, higher layer signaling, downlink control information DCI, medium access control MAC signaling, and the like. Optionally, the first power adjustment information may also be carried in signaling together with the scope. Possible implementations of the indication information will be described below.

As an implementation manner, optionally, the method 400 further includes: and the network equipment sends a first physical layer signaling to the terminal equipment, wherein the first physical layer signaling comprises the indication information. Correspondingly, the terminal device receives the first physical layer signaling from the network device. That is, the network device may send the indication information to the terminal device through the first physical layer signaling. Optionally, the first physical layer signaling may include the first power adjustment information.

The first physical layer signaling may be user equipment UE-specific downlink control information DCI.

Alternatively, the first physical layer signaling is a common DCI, where the common DCI may be a DCI of a plurality of UEs or all UEs corresponding to one serving cell or a plurality of serving cells. Further, the first physical layer signaling is group common DCI (group common DCI), corresponding to DCI of a group of UEs in one serving cell. Or, a DCI domain in the power adjustment DCI of the first physical layer signaling, where the power adjustment DCI has a plurality of DCI domains, each DCI domain corresponds to a group of UEs, and a group of UEs includes one or more UEs.

Specifically, the first physical layer signaling may be carried in a physical downlink control channel, where the physical downlink control channel is scrambled by a first Radio Network Temporary Identifier (RNTI), and the first RNTI is configured by a higher layer parameter. If the first physical layer signaling is UE-specific DCI, the first RNTI is a UE-specific RNTI; or, if the first physical layer signaling is the common DCI, the first RNTI is a broadcast RNTI; or, if the first physical layer signaling is a group common DCI, the first RNTI is a UE group RNTI. The physical downlink control channel may be broadcast or multicast. The broadcasted physical downlink control channel may be understood to be effective for all UEs in the cell; the multicast pdcch may be understood as being effective for UE grouping in a cell, or may indicate that the UE grouping is effective for different groups of UEs differently, for example, a first DCI field carried in the pdcch is effective for a first group of UEs, and a second DCI field is effective for a second group of UEs. For the case that the first physical layer signaling is the common DCI or the group common DCI, one DCI may be applicable to multiple UEs, avoiding using multiple DCIs for indication, thereby reducing the overhead of the DCI.

As another implementation manner, the receiving, by the terminal device, the indication information includes: receiving high-layer signaling from a network device, wherein the high-layer signaling comprises the indication information. That is, the indication information may be preconfigured by higher layer signaling. The terminal equipment can acquire the indication information through high-level signaling.

It should be understood that the embodiments of the present application are applicable not only to the first Type of scheduling-free transmission (Type I configured transmission), but also to the second Type of scheduling-free transmission (Type II configured transmission). In the first type of scheduling-free transmission, the terminal device does not need to receive uplink scheduling information at the initial transmission, i.e., the transmission of the terminal device depends only on the behavior of the terminal device. In the second type of scheduling-free transmission, the terminal device transmits uplink information after receiving the activated DCI.

As yet another implementation, the first physical layer signaling may be an activation DCI, where the activation DCI is used to activate a second type of scheduling-free transmission. The activation DCI is a UE-specific DCI.

For the second type scheduling-free transmission, when the terminal device completes the group packet for the second type scheduling-free transmission and prepares for uplink transmission, it needs to receive the activation DCI to really perform uplink transmission. The DCI is an uplink grant signaling scrambled by a second RNTI, which may be a configured scheduled radio network temporary identifier (CS-RNTI). The network device may reuse two authentication command words (i.e., a hybrid automatic repeat request (HARQ) process number (processsnumber) field and a Redundancy Version (RV) field) in the activation DCI to indicate the first power adjustment information and the indication information.

Optionally, the first power adjustment information is indicated by a redundancy version, RV, field in the activation DCI, and the indication information is indicated by a HARQ process number field in the activation DCI. Specifically, the network device may indicate the first power adjustment information, such as a closed loop power control correction value, by 2 bits (bit) of the RV field. Wherein whether the closed loop power control correction value is an accumulated correction value or an absolute correction value may be indicated by a higher layer parameter. In addition, the network device may indicate the indication information through 4 bits of the HARQ process number field (the HARQ process number field has 5 bits, for example, the 4 bits may be the remaining 4 bits except for the 1 st bit in the 5 bits, where the 1 st bit is used for verification). Specifically, the 4 bits of the HARQ process number field may indicate an index (index) of a Start and Length Indicator Value (SLIV), i.e., the HARQ process number field may indicate an index of the SLIV. Wherein the scope may be represented as a start and length indication value, SLIV, wherein the start of the scope may be represented as an offset value from the start of the schedule-free transmission, e.g., the offset value may be one or more time units; the length of the range may be a time-domain range of the first power adjustment information. Wherein, each SLIV index has a corresponding starting offset value and length. As shown in table 2 below:

TABLE 2

SLIV index	Starting position offset	length
			0	0	1
1	0	2
			…
15	5	5

As can be seen from Table 2, the SLIV index ranges from 0 to 15. For example, if the SLIV index indicated by the HARQ process number field is 0, it can be seen from table 2 that the offset value of the scope from the start of the schedule-free transmission is 0 slots, and the length of the scope is 1 slot.

Or, the first power adjustment information is indicated by a hybrid automatic repeat request HARQ process number field in the activated DCI, and the indication information is indicated by a redundancy version, RV, field in the activated DCI. Specifically, the network device may indicate the indication information through 2 bits of the RV field, for example, indicate an index of the SLIV (the range of the index of the SLIV is 0-3). Accordingly, the network device may indicate the first power adjustment information, such as the power control correction value, with 4 bits of the HARQ process number, and the index of the power control correction value ranges from 0 to 15.

In the second type of schedule-free transmission, the active DCI needs to be validated (identified). In the embodiment of the present application, optionally, the verification may be performed by the first bit of the HARQ process number command word. For example, the first bit position zero of the HARQ process number command word is used as the verification.

As can be seen from the above implementation manners of the indication information, the signaling carrying the indication information may have various forms, and the manners are flexible. It should be understood that signaling of indication information recited in the embodiments of the present application is not limited to the embodiments of the present application, and if possible, the indication information may also be carried in other reasonable signaling or in newly defined signaling, and the embodiments of the present application do not limit this.

It should be understood that the examples in fig. 4 to 6 are only for facilitating the understanding of the embodiments of the present application by those skilled in the art, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. It will be apparent to those skilled in the art that various equivalent modifications or variations are possible in light of the examples shown in fig. 4-6, and such modifications or variations are intended to be included within the scope of the embodiments of the present application.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should also be understood that the various aspects of the embodiments of the present application can be combined and used reasonably, and the explanation or illustration of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.

The method of power control according to the embodiment of the present application is described in detail above with reference to fig. 1 to 6. An apparatus for power control according to an embodiment of the present application will be described below with reference to fig. 7 to 10. It should be understood that the technical features described in the method embodiments are equally applicable to the following apparatus embodiments.

Fig. 7 shows a schematic block diagram of an apparatus 700 for power control according to an embodiment of the present application. The apparatus 700 is configured to perform the method performed by the terminal device in the foregoing method embodiment. Alternatively, the specific form of the apparatus 700 may be a terminal device or a module (e.g., a chip) in the terminal device. The embodiments of the present application do not limit this. The apparatus 700 comprises:

a transceiver module 710, configured to receive first power adjustment information;

a processing module 720, configured to adjust a first transmit power by using the first power adjustment information in a scope of the first power adjustment information, to obtain a second transmit power during the scope;

the transceiver module 710 is further configured to transmit the first information on the first time/frequency resource using the second transmission power.

In a possible implementation manner, the transceiver module 710 is further configured to: transmitting second information using the first transmit power if the scope is exceeded.

In a possible implementation manner, the transceiver module 710 is further configured to: receiving indication information, wherein the indication information is used for indicating the scope.

Optionally, the transceiver module 710 is configured to acquire the indication information, and specifically includes: receiving first physical layer signaling from a network device, wherein the first physical layer signaling comprises the indication information;

or receiving a high-layer signaling from the network equipment, wherein the high-layer signaling comprises the indication information.

In one possible implementation, the first physical layer signaling is user equipment UE-specific downlink control information DCI; alternatively, the first physical layer signaling is a common DCI.

In a possible implementation manner, the first physical layer signaling is activation of downlink control information DCI, where the activation of DCI is used to activate scheduling-free transmission of the second type.

Optionally, the first power adjustment information is indicated by a hybrid automatic repeat request, HARQ, process number field in the active DCI, and the indication information is indicated by a redundancy version, RV, field in the active DCI;

or, the first power adjustment information is indicated by an RV field in the activation DCI, and the indication information is indicated by an HARQ process number field in the activation DCI.

Optionally, the scope includes a time domain scope, wherein the time domain scope corresponds to index values of one or more time units.

Optionally, the first power adjustment information includes one or more of the following information: a closed loop indication, or a power control parameter, or a closed loop indication and a first power control parameter;

wherein the first power control parameter comprises one or more of: and the network equipment receives the target signal-to-noise ratio, the path loss compensation factor and the power control correction value of the first information.

It should be understood that the apparatus 700 for power control according to the embodiment of the present application may correspond to the method of the terminal device in the foregoing method embodiment, for example, the method in fig. 3, and the above and other management operations and/or functions of each module in the apparatus 700 are respectively for implementing corresponding steps of the method of the terminal device in the foregoing method embodiment, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no repeated description is provided here.

It should also be understood that the various modules in the apparatus 700 may be implemented in software and/or hardware, and are not particularly limited in this regard. In other words, the apparatus 700 is presented in the form of a functional module. As used herein, a "module" may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. Alternatively, in a simple embodiment, one skilled in the art will recognize that apparatus 700 may take the form shown in FIG. 8. The processing module 720 may be implemented by the processor 801 shown in fig. 8. The transceiver module 710 may be implemented by the transceiver 803 shown in fig. 8. In particular, the processor is implemented by executing a computer program stored in the memory. Alternatively, when the apparatus 700 is a chip, the functions and/or implementation processes of the transceiver module 710 may also be implemented by pins or circuits. Optionally, the memory is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the computer device, such as the memory 802 in fig. 8.

Fig. 8 shows a schematic block diagram of an apparatus 800 for power control according to an embodiment of the present application. As shown in fig. 8, the apparatus 800 includes: a processor 801.

In one possible implementation, the processor 801 is configured to invoke an interface to perform the following actions: receiving first power adjustment information; the processor 801 is configured to adjust a first transmit power by using the first power adjustment information in a scope of the first power adjustment information, to obtain a second transmit power during the scope; the processor 801 is configured to invoke an interface to perform the following actions: and transmitting the first information on the first time-frequency resource by using the second transmission power.

It should be understood that the processor 801 may invoke an interface to perform the above transceiving actions, wherein the invoked interface may be a logical interface or a physical interface, which is not limited thereto. Alternatively, the physical interface may be implemented by a transceiver. Optionally, the apparatus 800 further comprises a transceiver 803.

Optionally, the apparatus 800 further includes a memory 802, and the memory 802 may store the program codes in the above method embodiments for the processor 801 to call.

Specifically, if the apparatus 800 includes the processor 801, the memory 802 and the transceiver 803, the processor 801, the memory 802 and the transceiver 803 communicate with each other and transmit control and/or data signals through the internal connection path. In one possible design, the processor 801, the memory 802, and the transceiver 803 may be implemented by chips, and the processor 801, the memory 802, and the transceiver 803 may be implemented in the same chip, or may be implemented in different chips, or any two of them may be implemented in one chip. The memory 802 may store program code, which the processor 801 invokes to implement the corresponding functions of the apparatus 800, stored by the memory 802.

It should be understood that the apparatus 800 may also be used to perform other steps and/or operations on the terminal device side in the foregoing embodiments, and details are not described herein for brevity.

Fig. 9 shows a schematic block diagram of an apparatus 900 for power control according to an embodiment of the application. The apparatus 900 is configured to perform the method performed by the network device in the foregoing method embodiment. Alternatively, the specific form of the apparatus 900 may be a network device or a chip in a network device. The embodiments of the present application do not limit this. The apparatus 900 comprises:

a sending module 910, configured to send first power adjustment information, where the first power adjustment information is used by a terminal device to adjust a first transmission power in an action domain, so as to obtain a second transmission power during the action domain;

a receiving module 920, configured to receive first information from the terminal device on a first time-frequency resource.

In a possible implementation manner, the receiving module 920 is further configured to:

and receiving second information from the terminal equipment under the condition of exceeding the scope.

In a possible implementation manner, the sending module 910 is further configured to:

sending a first physical layer signaling to the terminal device, wherein the first physical layer signaling comprises indication information, and the indication information is used for indicating the scope; or sending a high-level signaling to the terminal equipment, wherein the high-level signaling comprises the indication information.

or, the first power adjustment information is indicated by a redundancy version, RV, field in the activation DCI, and the indication information is indicated by a HARQ process number field in the activation DCI.

Optionally, the first power adjustment information includes one or more of the following information: a closed loop indication, or a first power control parameter, or a closed loop indication and a first power control parameter;

It should be understood that the apparatus 900 for power control according to the embodiment of the present application may correspond to the method of the network device in the foregoing method embodiment, for example, the method in fig. 3, and the above and other management operations and/or functions of each module in the apparatus 900 are respectively for implementing corresponding steps of the method of the network device in the foregoing method embodiment, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no repeated description is provided here.

It should also be understood that the various modules in the apparatus 900 may be implemented in software and/or hardware, and are not particularly limited in this regard. In other words, the apparatus 900 is presented in the form of a functional module. As used herein, a "module" may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. Alternatively, in a simple embodiment, one skilled in the art will recognize that the device 900 may take the form shown in FIG. 10. The transmitting module 910 and the receiving module 920 may be implemented by the transceiver 1003 shown in fig. 10. In particular, the processor is implemented by executing a computer program stored in the memory. Alternatively, when the apparatus 900 is a chip, the functions and/or implementation procedures of the sending module 910 and the receiving module 920 may also be implemented by pins, circuits, or the like. Optionally, the memory is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the computer device, such as the memory 1002 in fig. 10.

Fig. 10 shows a schematic block diagram of a power control apparatus 1000 according to an embodiment of the present application. As shown in fig. 10, the apparatus 1000 includes: a processor 1001.

In one possible implementation, the processor 1001 is configured to invoke an interface to perform the following actions: sending first power adjustment information, wherein the first power adjustment information is used for adjusting first transmission power by terminal equipment in an action domain to obtain second transmission power in the action domain period; first information from the terminal device is received on a first time-frequency resource.

It should be understood that the processor 1001 may call an interface to perform the transceiving action, wherein the called interface may be a logical interface or a physical interface, which is not limited thereto. Alternatively, the physical interface may be implemented by a transceiver. Optionally, the apparatus 1000 further comprises a transceiver 1003.

Optionally, the apparatus 1000 further includes a memory 1002, and the memory 1002 may store the program codes in the above method embodiments, so as to be called by the processor 1001.

Specifically, if the device 1000 includes the processor 1001, the memory 1002 and the transceiver 1003, the processor 1001, the memory 1002 and the transceiver 1003 communicate with each other via the internal connection path to transmit control and/or data signals. In one possible design, the processor 1001, the memory 1002, and the transceiver 1003 may be implemented by chips, and the processor 1001, the memory 1002, and the transceiver 1003 may be implemented in the same chip, or may be implemented in different chips, or any two functions may be implemented in one chip. The memory 1002 may store program code, which the processor 1001 invokes to implement the corresponding functions of the device 1000, stored by the memory 1002.

It should be understood that the apparatus 1000 may also be used to perform other steps and/or operations on the network device side in the foregoing embodiments, and details are not described herein for brevity.

The method disclosed in the embodiments of the present application may be applied to a processor, or may be implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a Microcontroller (MCU), a programmable logic controller (PLD), or other integrated chip. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in the embodiment of the present application, the numbers "first" and "second" … are introduced for terms only to distinguish different objects, such as different information or time-frequency resources, and do not limit the scope of the embodiment of the present application, and the embodiment of the present application is not limited thereto.

It should also be understood that, in the various embodiments of the present application, the size of the serial number of each process described above does not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of each process. The various numbers or serial numbers involved in the above processes are merely used for convenience of description and should not be construed as limiting the implementation processes of the embodiments of the present application in any way.

It should also be understood that the term "and/or" herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Items appearing in this application as similar to "include one or more of the following: the meaning of the expressions A, B, and C "generally means that the item may be any of the following, unless otherwise specified: a; b; c; a and B; a and C; b and C; a, B and C; a and A; a, A and A; a, A and B; a, A and C, A, B and B; a, C and C; b and B, B, B and C, C and C; c, C and C, and other combinations of A, B and C. The above description is made by taking 3 elements of a, B and C as examples of optional items of the item, and when the expression "item" includes at least one of the following: a, B, … …, and X ", i.e., more elements in the expression, then the items to which the item may apply may also be obtained according to the aforementioned rules.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of power control, comprising:

receiving first power adjustment information;

adjusting first transmission power by using the first power adjustment information in the scope of the first power adjustment information to obtain second transmission power during the scope of the first power adjustment information;

and transmitting the first information on the first time-frequency resource by using the second transmission power.

2. The method of claim 1, further comprising:

transmitting second information using the first transmit power if the scope is exceeded.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

receiving indication information, wherein the indication information is used for indicating the scope.

4. The method of claim 3, wherein the receiving the indication information comprises:

receiving first physical layer signaling from a network device, wherein the first physical layer signaling comprises the indication information;

alternatively, the first and second electrodes may be,

receiving high-layer signaling from a network device, wherein the high-layer signaling comprises the indication information.

5. The method of claim 4, wherein the first physical layer signaling is User Equipment (UE) -specific Downlink Control Information (DCI); alternatively, the first physical layer signaling is a common DCI.

6. The method of claim 4, wherein the first physical layer signaling is activation Downlink Control Information (DCI), and wherein the activation DCI is used for activating scheduling-free transmission of a second type.

7. The method of claim 6, wherein the first power adjustment information is indicated by a hybrid automatic repeat request (HARQ) process number field in the active DCI, and wherein the indication information is indicated by a Redundancy Version (RV) field in the active DCI;

8. The method of any of claims 1-7, wherein the scope comprises a time-domain scope, wherein the time-domain scope corresponds to an index value of one or more time units.

9. The method according to any of claims 1 to 8, wherein the first power adjustment information comprises: a closed loop indication, or a first power control parameter, or a closed loop indication and a first power control parameter;

10. A method of power control, comprising:

sending first power adjustment information, wherein the first power adjustment information is used for adjusting first transmission power by terminal equipment in an action domain to obtain second transmission power in the action domain period;

first information from the terminal device is received on a first time-frequency resource.

11. The method of claim 10, further comprising:

12. The method according to claim 10 or 11, characterized in that the method further comprises:

sending a first physical layer signaling to the terminal device, wherein the first physical layer signaling comprises indication information, and the indication information is used for indicating the scope; alternatively, the first and second electrodes may be,

and sending a high-level signaling to the terminal equipment, wherein the high-level signaling comprises the indication information.

13. The method of claim 12, wherein the first physical layer signaling is user equipment, UE, dedicated downlink control information, DCI; alternatively, the first physical layer signaling is a common DCI.

14. The method of claim 12, wherein the first physical layer signaling is activation of Downlink Control Information (DCI), and wherein the activation of the DCI is used to activate scheduling-free transmission of a second type.

15. The method of claim 14, wherein the first power adjustment information is indicated by a hybrid automatic repeat request (HARQ) process number field in the active DCI, and wherein the indication information is indicated by a Redundancy Version (RV) field in the active DCI;

16. The method of any of claims 10 to 15, wherein the scope comprises a time-domain scope, wherein the time-domain scope corresponds to an index value of one or more time units.

17. The method according to any of claims 10 to 16, wherein the first power adjustment information comprises: a closed loop indication, or a first power control parameter, or a closed loop indication and a first power control parameter;

18. A communications apparatus, comprising means for performing the method of any of claims 1-9, or 10-17.

19. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to a communications device other than the communications device, the processor being arranged to implement the method of any one of claims 1 to 9, or 10 to 17 by means of logic circuitry or executing code instructions.

20. A computer-readable storage medium, in which a program or instructions are stored which, when executed, implement the method of any one of claims 1 to 9, or 10 to 17.